Question 277200
T=tom D=todd
{{{T=4D}}} "tom is now 4 times as old as todd"
{{{T+3=13+2(D+3)}}} "in three years tom's age will be 13 years more than 2 times as old as tom" Remember to add 3 years to both T and D
use substitution to solve for D
{{{T+3=13+2(D+3)}}} {{{T=4D}}}
{{{(4D)+3=13+2(D+3)}}} Use order of opperations
{{{(4D)+3=13+(2D+6)}}} add
{{{(4D)+3=19+2D}}} subtract
{{{(2D)=16}}} divide
{{{D=8}}}
{{{T=4D}}} substitute
{{{T=4(8)}}} multiply
{{{highlight (T=32)}}}